#343DA4#343DA4
#343DA4 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.9% C 0.164 H 273.2°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).
Color values
| HEX | #343DA4 |
|---|---|
| RGB | rgb(52, 61, 164) |
| HSL | hsl(235, 52%, 42%) |
| HSV | hsv(235, 68%, 64%) |
| CMYK | cmyk(68.3%, 62.8%, 0%, 35.7%) |
| CIE-LAB | lab(31.22, 30.78, -56.75) |
| CIE-LCH | lch(31.22, 64.56, 298.47°) |
| OKLab | oklab(41.94% 0.0091 -0.1637) |
| OKLCH | oklch(41.94% 0.164 273.2) |
| XYZ | xyz(9.7835, 6.7470, 35.9015) |
| Luminance | 0.0675 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.28
Blueberry
#464196
ΔE00 3.76
Ocean Blue
#4F42B5
ΔE00 4.74
Blue Blue
#2242C7
ΔE00 4.93
Darkslateblue
#483D8B
ΔE00 5.54
Cobalt
#0047AB
ΔE00 5.90
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#343DA4 #A49B34
analogous
#3475A4 #343DA4 #6334A4
triadic
#343DA4 #A4343D #3DA434
tetradic
#343DA4 #A43475 #A49B34 #34A463
square
#343DA4 #A43475 #A49B34 #34A463
split-complementary
#343DA4 #A46334 #75A434
monochromatic
#171A47 #252C76 #343DA4 #4E58C7 #7D84D6
Accessibility & contrast
On white
8.94
#343DA4 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.35
#343DA4 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #343DA4
8.94:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##343DA4 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##343DA4 | 1.00 | 8.94 | 2.35 | 8.94 |
| #FFFFFF | 8.94 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.35 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.94 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004FA7
Deuteranopia (green-blind)
#0044A2
Tritanopia (blue-blind)
#00576A
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #343da4; /* rgb */ color: rgb(52, 61, 164); /* oklch */ color: oklch(41.9% 0.164 273.2);
Tailwind
colors: {
custom: {
50: '#7a72c0',
500: '#343da4',
950: '#000000',
},
}SCSS
$custom: #343da4; $custom-light: #7a72c0; $custom-dark: #000000;
JSON
{
"hex": "#343da4",
"rgb": {
"r": 52,
"g": 61,
"b": 164
},
"hsl": {
"h": 235.179,
"s": 51.852,
"l": 42.353
},
"oklch": {
"l": 0.41943,
"c": 0.16393,
"h": 273.2
},
"luminance": 0.06748
}Semantic roles & 50–950 ramp
primary
#343DA4
secondary
#BFB975
accent
#D04CDB
background
#F8F6FB
surface
#EFECF7
border
#CAC7D0
text
#0A0812
muted
#7C7B81